Sony KV-T25MF1K Service Manual ▷ View online
– 17 –
KV-T25MF1K
RM-883
SECTION 4
SELF DIAGNOSIS FUNCTION
If no acknowledgement is returned from a device which is turned "ON", the device has a problem.
In this case, one of the LED's responding to the problem device will flicker a defined number of times.
Flickering is operated by lighting the LED's for 60ss each time.
The flickering frequency responding to each failed device is shown below.
All the devices are checked one after another from the left of the table.
If an error is found, the responding LED will start flickering.
So, if more than 1 device have failed, only the one on the left side will flicker.
Device
Flickering
Frequency
NONVOLATILE
MEMORY
1
—
—
Y/C JUNGLE
3
—
—
—
—
TONE
CONTROL
(IC201)
6
– 18 –
KV-T25MF1K
RM-883
Entering service mode
With the unit on standby
↓
DISPLAY
↓
5
↓
VOL (+)
↓
POWER
The operation sequence puts the unit into service mode.
SECTION 5
CIRCUIT ADJUSTMENTS
5-1. ADJUSTMENTS WITH COMMANDER
Service adjustments are made with the RM-883 that comes with
this unit.
[1], [4]
Raise/lower the service item number
[3], [6]
Raise/lower the data
[MUTING]
Writes
[0]
Executes the writing
[7], [0]
All the data becomes the values in memory
[8], [0]
All user control goes to the standard state
[5], [0]
Service data initialization (Be sure not to use
usually.)
[2], [0]
Write 50Hz adjustment data to 60Hz, or
viceversa.
The screen display is :
[1], [4]
Select the adjustment item.
↓
[3], [6]
Raise/lower the data.
↓
[MUTING]
Writes
↓
[0]
Executes the writing.
SELECT
p
PIC MODE
p
SOUND
MODE
VOL
PROGR
RM-883
g
POWER
DISP
REVEAL
MUTING
TV
VIDEO
HOLD
TEXT
A/B
ENLARGE
WIDE/
V-ZOOM
WAKE UP
INDEX
SLEEP
TEXT CLR
+
+
1
2
3
4
6
7
8
9
0
+
p
–
p
5
TV
SERVICE
Mode
08
DATA
RGB
50
Depends on the signals
PAL, SECAM : 50
NTSC : 60
1000
0000
Adjustment item
00
Item number
RM-883
– 19 –
KV-T25MF1K
RM-883
5-2. ADJUSTMENT METHOD
Item Number 08
This explanation uses V-SHIFT as an example.
1. Select 08 V-SHIFT with the [1] and [4] buttons.
2. Raise/lower the data with the [3] and [6] buttons.
3. Select the optimum state. (The standard is 0F for PAL
reception.)
4. Write with the [MUTING] button.
5. Execute the writing with the [0] button. (The WRITE
display returns to green SERVICE.)
Use the same method for Items Number 00-33. Use [1] and [4] to
select the adjustment item, use [3] and [6] to adjust, write with
[MUTING], then execute the write with [0].
WRITE
WRITE
GREEN
0C
VSF
08
SERVICE
50
50
50
GREEN
0C
VSF
08
Adjusted with “3” and “6” buttons
Written with “MUTING”
Write executed with “0”
GREEN
The WRITE display
will change back to
SERVICE.
0C
VSF
08
Ajust with the
[3]
and
[6]
buttons.
Written with
the [MUTING]
.
Write executed with
[0]
.
– 20 –
KV-T25MF1K
RM-883
Adjustment Item Table
Data
range
range
Initial
data
Standard data
Note
Device
Item
Adjustment
number
Item
00
HSF
00–3F
24
H SHIFT
(TDA8375)
01
HSZ
00–3F
23
H SIZE
(TDA8375)
02
PAP
00–3F
21
PIN AMPLITUDE
(TDA8375)
03
CNP
00–3F
29
CORNER PIN
(TDA8375)
04
TLT
00–3F
20
TILT
(TDA8375)
05
VSL
00–3F
20
V SLOPE
(TDA8375)
06
VAP
00–3F
1D
V AMPLITUDE
(TDA8375)
07
SCR
00–3F
20
S CORRECTION
(TDA8375)
08
VSF
00–3F
20
V SHIFT
(TDA8375)
09
RDR
00–3F
25
WHITE POINT R
(TDA8375)
0A
GDR
00–3F
20
WHITE POINT G
(TDA8375)
0B
BDR
00–3F
20
WHITE POINT B
(TDA8375)
0C
FO
00–03
00
TV: 00
VIDEO: 00
TEXT: 01 ø 1 TIME CONSTANT
(TDA8375)
0D
AGC
00–3F
30
TV: 30
VIDEO: 30
TEXT: 30 AGC TAKE OVER
(TDA8375)
0E
VSW
00–01
00
TV: 00
VIDEO: 01
TEXT: 00 VIDEO MUTE
(TDA8375)
0F
FOR
00–03
03
FORCED FIELD FREQ.
(TDA8375)
10
DL
00–01
00
INTERLACE
(TDA8375)
11
POC
00–01
00
SYNCHRO MODE FIX
(TDA8375)
12
VID
00–01
00
VIDEO IDENT MODE
(TDA8375)
13
HCO
00–01
00
EHT TRACKING MODE
(TDA8375)
14
EVG
00–01
00
ENABLE V GUARD
(TDA8375)
15
SBL
00–01
00
SERVICE BLANKING
(TDA8375)
16
PRD
00–01
00
OVER-VOLTAGE INPUT
(TDA8375)
17
COR
00–01
00
NOISE CORING PEAK
(TDA8375)
18
PMX
00–3F
2B
PICTURE MAX DATA
(TDA8375)
19
PMI
00–3F
04
PICTURE MIN. DATA
(TDA8375)
1A
SBR
00–7F
4B
SUB-BRIGHTNESS
(TDA8375)
1B
SHU
00–0F
07
SUB-HUE
(TDA8375)
1C
SSH
00–03
01
TV: 01
VIDEO: 02
SUB-SHARPNESS
(TDA8375)
1D
SC1
00–3F
1F
50: 26
60: 29
SUB-COLOR LOWER
(TDA8375)
1E
SC2
00–3F
0D
50: 0C
60: 0D
SUB-COLOR HIGHER
(TDA8375)
1F
AIP
00–7F
3F
ADJUSTMENT IF PLL
(TDA8375)
20
VZM
00–3F
19
VERTICAL ZOOM
(TDA8375)
21
TXP
00–0F
07
TEXT PICTURE CONT.
(SAA5281)
22
MXP
00–0F
0A
TEXT MIX MODE PICTURE
(SAA5281)
23
BKP
00–3F
00
BLK OFF PICTURE
(M-CON)
24
ODL
00–FF
10
POWER ON DELAY
(M-CON)
25
OFR
00–0F
00
STBY
n
ON RGB OUT
(M-CON)
26
OFM
00–0F
00
MAIN POWER RGB OUT
(M-CON)
27
OSH
00–3F
0A
OSD POSITION H
(M-CON)
28
MUT
00–01
00
NO SYNC. MUTE
(M-CON)
29
ABL
00–01
00
BRIGHT ABL
(M-CON)
2A
DTV
00–01
00
POWER ON DELAY
(M-CON)
2B
SCM
00–01
00
REMO. CON. RGB OUT
(M-CON)
2C
ROC
00–0F
07
MAIN POWER RGB OUT
(M-CON)
2D
ROS
00–07
03
OSD POSITION H
(M-CON)
2E
DVM
00–01
00
NO SYNC. MUTE
(M-CON)
2F
POM
00–01
01
BRIGHT ABL
(M-CON)
30
FBT
00–01
01
BRIGHT ABL
(M-CON)
31
OP0
00–FF
4E
OPTION 0
(M-CON)
32
OP1
00–FF
06
OPTION 1
(M-CON)
33
OP2
00–FF
26
OPTION 2
(M-CON)
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